//package com.mask.sca.system.filter;
//
//import org.slf4j.MDC;
//import javax.servlet.*;
//import javax.servlet.annotation.WebFilter;
//import javax.servlet.http.HttpServletRequest;
//import java.io.IOException;
//
//@WebFilter("/*")
//public class TraceIdFilter implements Filter {
//    private static final String TRACE_ID_HEADER = "X-Trace-Id";
//    @Override
//    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
//            throws IOException, ServletException {
//        HttpServletRequest httpRequest = (HttpServletRequest) request;
//        String traceId = httpRequest.getHeader(TRACE_ID_HEADER);
//        if (traceId != null && !traceId.isEmpty()) {
//            MDC.put(TRACE_ID_HEADER, traceId);
//        }
//        try {
//            chain.doFilter(request, response);
//        } finally {
//            MDC.remove(TRACE_ID_HEADER);
//        }
//    }
//}